Wellhead equipment and Christmas tree equipment are important equipment for oil and gas exploitation. They are composed of casing head, tubing head and Christmas tree. They are used to connect casing string and tubing string, seal annular space between casing and tubing, control pressure of production wellhead and regulate wellhead flow of oil and gas. They can also be used for special operations such as acid fracturing, water injection and testing Industry.

　　Product specification
　　The design meets the requirements of API spec6a
　　Rated working pressure: 2000-20000 PSI
　　Rated temperature class: K, l, P, R, s, t, u, V
　　Product material grade: AA, BB, CC, DD, EE, FF
　　Product specification level: psl1-psl4
　　Performance requirements: PR1, PR2
　　Applicable media: oil, natural gas, mud, etc